ZnO nanowires have attracted a great attention as building blocks for the optoelectronic devices. For the practical
optoelectronic applications based on the ZnO nanowires, a synthesis technique for layered structure has significant
advantage to fabricate a pn junction, a core/shell structure, and a multiple quantum well structure. We have been
succeeded in growing nanowires on the pre-deposited ZnO film and core/shell structure by a newly developed
nanoparticle-assisted pulsed-laser deposition (NAPLD) using multi-target changer. In this paper, recent progresses of
synthesis of layer-structured ZnO nanowires by the NAPLD are described.